单项选择题

The invisible rays of the ______ beyond the violet end are called the ultraviolet rays.

A．speculation
B．spectrum
C．sleet
D．range
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单项选择题
Thus ______ between the developed and developing countries.
A．arose the division
B．the division arose
C．the division was arising
D．arising the division
单项选择题
The rules stated that anyone who had held office for three years was not ______ for re-election.
A．admirable
B．eligible
C．reliable
D．capable
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